Low-pressure multipull paper burster gun



April 1953 A. F. LANGOS 2,634,550

LOWPRESSURE MULTIPULL PAPER BURSTER GUN Filed July 5, 1950 6 INVENTORK QM Flaws Patented Apr. 14, 1953 LOW-PRESSURE MULTIPULL PAPER BURSTER GUN Alfred F. Langos, Chicago, 111;, assignor to Langson Manufacturing 00.; Chicago, 111.,

ration of Illinois.

a corpo- Application uly 5, 1950, Serial'No. 172,053

1 Claim. (Cl. 46-195) The present invention relates to a toy of th general type wherein a slidably supported member is cooked against the action of a spring and released to act upon an object carried in the toy.

More particularly, the invention relates to a paper bursting toy of the type wherein a movable member is adapted to be cooked and driven by a strong coil spring for developing sufiicient air pressure to burst a strip of paper carried in the toy.

In toys generally of the type set forth above, it is essential that the coil spring driving the movable member be sufliciently strong so that the toy be capable of performing its designed function, such as bursting a strip of paper, shooting a cork, or squirting a stream of water. Therefore, a considerable amount of strength is required on the part of an operator, in order to actuate such guns. Due to this characteristic, guns of this type are necessarily restricted in their use to older children having sufficient strength; but because paper burster guns are completely harmless and are desirable playthings, the need for a gun of this general type that could be used by younger children, has long been recognized. In the past, efforts to make such a gun have been centered around extension of the actuating or trigger lever. These efforts have proven unfruitful in that elongation of the trigger lever failed to provide the necessary leverage in a unit suiiiciently small to be grasped by younger children, and spoiled the configuration of the gun, thus making it undesirable to the children. Further, the actuating mechanisms of known air pressure developing paper bursting of this type generally utilize linearly movable parts" which require certain types of housing'configura tions providing sufficient space for movement of the parts. In order to modify the configuration of the housing, it was first necessary to provide a compact actuating mechanism. Thus, the

need for a relatively compact paper burster actu-.

strong biasing means for acting upon an object carried in the toy;

Another object of the invention is to provide an improved rotary actuating mechanism for use.

air pressure developing paper bursting toys v2 7 having confined configuration or small housings.

A further object of the invention is to provid a paper bursting toy having an improved rotary paper feed mechanism therein. I 1

A feature of the invention is the provision of an improved toy actuating mechanism for cocking a spring driven member against the action of a strong spring in a plurality of cockingsteps requiring only sequential operation of the actuating means and littlestrength;

Another feature of the invention is the provision of a novel paper bursting toy having a rotary cocking member for actuating the toy, and for automatically feeding paper during the cocking movement.

Other objects, features and many of the'attendant advantages of this invention will be appreciated readily as the same becomes understood by reierence to the following detailed description, when considered in connection with the accompanying drawings, wherein:

Fig. 1 is a sectional View of a paper bursting toy gun incorporating the novel actuating mechanism, and showing themechanism in one of its operative positions;

' Fig. 2 is a sectional view of the gun illustrated in Fig. 1, and showing the novel actuating mechanism in a second of its operative positions Fig. 3 is a cross sectional View of a rotary, cocking member comprising a part of the novel toy actuating mechanism; and

Fig. 4 is a fragmentary view showing the cooperation of the novel rotary cocking member with the movable air pressure developing member of the gun shown in Fig. 1.

In practicing the invention, a paper bursting toy is provided, having a movable piston and piston rod member adapted to be cooked and released for bursting a strip of paper automatically fed past and sealed over a cylinder in which the member is seated. The piston and piston rod member is cooked against the action of a powerful coil spring by a ratchetwheel rotatably mounted on the toy, and having a number of engaging pins spaced about the outer periphery of one of its faces, which arelesser in number than the number of teeth in the ratchet wheel. The ratchet wheel is so positioned relative to the piston and piston rod member, that the engaging pins releasably engage and cook the member in steps during a plurality of cooking movements ofa trigger 'operatively connected to the teeth of the ratchet wheel. Automatic paper feeding is provided by a plurality of paper feed pawls spaced about theperiphery of the ratchet wheel, one of which engages the paper during the cocking movement of the member.

Referring now to Fig. 1, a paper bursting toy.

gun constructed in accordance with the invention is shown. The gun includes a housing ll having a forward barrel portion, a breech portion including av papen chamber; l-2 having a paper guideway I3 and. M leadingrrom, it, and a pistol grip portion [6, all of which are cast integral in two mating parts and joined togethen open ended cylinder l9 slidably seated in;a:-.sem i,-,-

cylindrical cavity formed-in the forward breech portion of housing; l;l., Slidable cylinder l3 has a centrally apertured rubber grommet 2| fitted thereonwhich-normally seals paper ll over aperture [8, and slidabiy seats a -mo v able, member. comprising a pistonlkfixed to a pistonrod 23, and, driven by. a coil; Spring 22; Piston 110d 23 has a notch 25 cut midway. its length which is bounded on its rearward side by an enlarged piston rod portion2'l, the purpose of which will beappreciated more. readily hereinafter, and slidably supported in, housing ll substantially. inqthe, center thereof, asis shown in Fig. 3.

The movable member. comprising piston 22, and pistonrod 23, is cocked by a novel actuating mechanismincluding a; trigger 28 pivotally sup; ported on housing H by rivet 29, and haying an integral lever. extension, 3,0 acted against by a returnspring. 3|. Pivotally supported on lever; extension 3U, is.a finger, link 32. having aspring. 33 biasing it into .engagementwith a. rotatable cocking member. having a luralityof primary.

engaging means spaced about, its. periphery,-

comprising a ratchet wheel 34. Ratchet wheel 351..is rotatably.secpredto housing H by pivot pin 3,5,ascan best be seeninFig, 3, andisdis posed to one side of piston rod 23. Secured to the outer peripheryv of. one surface or side of ratchet wheel 3A are a. plurality of secondary engaging means comprising piston rod engaging. lugs. 37 which are lesser in, number. than the number of teethin ratchetwheel 34,. and, if. dee. sired, may be a sub-multiple of the number: of, teeth. Eachof thelugs 3,1.ispositioned to selectively engage pistonrodportion 2'1 to cock, piston rod,23 in,a pluralityv of steps, upon'sequential operation of trigger 28, and has a fee,d,pawl 38-. fixed thereto which cooperates with the upper surface of paper guideway id to feed an unbroken portion of paper between'rubber grommet 2.1.and, aperture I 8 during the v cocking movement of pieton rod 23. To prevent reverse rotation, of ratchet wheel 34- between successive pulls of: trigger 28 by reason-10f the-action of; coilpspring: 24, a hooked stop 39 is. pivotally mounted on, housing H. by rivet 4|, and is biased into en-; gagement with: the primary engagingteetlr of ratchet wheel 34=by aspring 42.

In operation, upon pulling trigger 28- rearwardly to the position shown in Fig. 2, spring biased'finger link 32- engages ratchet wheel 34 and rotates it one step. Simultaneously with e t i n f a chetw eel 34, st p. 39 slides. into the nextsucceeding tooth of ratchet wheel" 34', and operates as astopto preyent. reverse rotation of the ratchet wheel upon hooked 1ink..I

4 32 releasing its hold. At the end of the cocking stroke of trigger 28, coiled spring 3| cooperating with lever extension 30 returns trigger 28 to the position shown in Fig. l, simultaneously sliding link 32 back one step to engage a new tooth in ratchet wheel 34. As is best seen in Fig. 4, upon ratchet wheel 34; beingrotated, thenppermost' of. lugs 35!: comes into engagement with the enlarged portion 21 of piston rod 23. Ifhereafter further rotation of ratchet Wheel 34 serves to cook piston rod 23 against the action of-jcoilf spring- 24 one step. Between each step, hooked link 32 is released from engagement with ratchet wheel 34 for the purpose of obtaining 4 anew bit, hoyvever, stop 39 prevents piston rod 23 fromdriving theratchet wheel in the reverse direction. A succeeding cocking stroke of the trigger, cocks piston rod 23 one step further, and the; operation is again repeated until the uppermost lug reaches the position shown at dotted lines; at .which,instant the pistonrod 2,3 isreleased; to theactionof the coilspring 26V to burst thepaper. Thus, by reason of the invention, it is possible to cook the movable member of a, toy against its biasing spring in steps; thereby allowing the necessary total energy. required to actuatethe toy to bedistributed through a plus rality. of successive pulls. This feature is, provided without impairing in any manner the desired configuration. of the toy, and is ideally suited for younger children. Further the, invention provides an improved, rotary actuating mechanism, for transferring the, movement of the; trigger of an air. pressure developing paper bursting toy to the toy. air, pressure developing, paper bursting means. By reason of this featur e, the toy, is simplified, and is more easily paekagedin, a small housing.

Concurrently with the cocking of. piston rod 23, thefeed paw/1138 on the u permost of lugs 31.) engages paper i'l; pressing the same against guideway t4 and, forcing it rearwardly to automat ally p ov de an unb oken portion ofpaper. between the endof'cylinder l9 andaperture l8, Thus, the rotary actuating mechanism can be modifiedto provide animproved automaticallyv operating paper feed mechanism requiring little or noadditionalspace.

In operating the,gun,trigger 28 is pulledirearwardly. This movement is,transmitted through link 3'2 operatively connected to rotary, ratchet:

wheel" 34; rotating ratchet, wheel one step and simultaneously advancing stop 39 one, step. Rotation of ratchet wheelniember 34. causes a lug 31' to engage piston rod 23 pullingitlrearwar'dly. Due to the friction between piston 22 and cylinder l9, cy1inder l9 ismoved rearwardly to lift grommet, from paper. I]; and allowing a paper. feedjpawl 38 to advancean unbroken portion of paper infront ofiaperture l8. After only a shorttrayLa piny43,in housing II contacts a lip 44 extending downwardly from cylinder l9 and pree vents further rearward movement of the cylinder. Upon. the piston v rod, being released by lug 3]ito the action of'coilspring 24,,the friction between piston 22 and cylinder 19 causes these two members to-drive forward concurrently,

until rubberv grommetZ'l contacts paper and the surface ofguideway l3 .in,which orificev I8 is, formed. Thismove nent, causes, the cylinder to form an airtight seal over paper I! so that further forward movementofpiston 22' builds up.

air pressure, and results in rupturing the paper withv a. ud r port.

Thus, the invention provides an actuating mechanismfor atoy, having a, moving vv member to.

cock against a strong driving spring which requires only a small amount of strength to opcrate. The invention further provides a rotary actuating mechanism for transmitting the motion of an air pressure paper bursting toy actuating trigger to the air pressure developing means, and which can be contained within a small toy housing. Further, by properly designing the toy housing and mounting paper feed means on the rotary cocking member comprising a part of the invention, a mechanism for performing the dual function of actuating the toy and automatically feeding paper, can be readily provided.

Other modifications and variations will be suggested to one skilled in the art, in the light of the above teachings. It is therefore to be understood that changes can be made in the embodiment of the invention disclosed which are within the full intended scope of the invention as defined by the appended claim.

I claim:

A paper bursting toy gun including in combination a housing having a paper guideway, feedable paper carried in said guideway, means for bursting said paper including a piston rod movable relative to said housing and adapted to be cocked and released for bursting said paper, trigger means for actuating said toy, means operatively connecting said trigger means to said piston rod to cock and release the same to burst said paper, last mentioned means including a ratchet Wheel rotatably mounted on said housing and having a plurality of pins spaced about the outer periphery of one side thereof, the number of said pins being a sub-multiple of the number of teeth in said ratchet wheel, a spring biased finger link pivotally mounted on said trigger means and biased into engagement with the teeth on said ratchet wheel, and a stop means mounted on said housing and operatively engaging the teeth of said ratchet wheel at the end of each cocking stroke of the trigger to prevent reverse movement of said ratchet wheel, one of said pins releasably engaging said piston rod during a plurality of cooking movements of said trigger means to cook the same, and means for feeding said paper during the cocking stroke of said trigger means, said last mentioned means comprising a feed pawl fixed to each of said pins and contacting said feedable paper; and said guideway to feed said paper during a portion of the angular travel of said wheel.

ALFRED F. LANGOS.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 845,351 Hanson Feb. 26, 1907 1,203,274 Sandage Oct. 31, 1916 1,332,556 Jelinek Mar. 2, 1920 2,098,006 Kilgore Nov. 2, 1937 2,175,601 Grund Oct. 10, 1939 2,481,337 Palken et a1. Sept. 6, 1949 2,542,777 Loew Feb. 20, 1951 

